Diseases of flowers and other Diseases of flowers and other ornamentals diseasesofflower118smit Year: 1940 Diseases of Flowers and Other Ornamentals 49 Affected leaves should be removed as soon as the disease first appears. The trees may be sprayed with 3-3-50 bordeaux mixture (p. 97), which disfigures the foliage somewhat. A sticker (p. 102) may be added to the spray if it seems necessary. Leaf Smut.—Leaves of the ornamental date palm, Phoenix canaden- sis, are often disfigured by this fungus disease, caused by Graphiola phoenicis. Small, dark, cup-shaped pustules, filled with powdery spore
Diseases of flowers and other Diseases of flowers and other ornamentals diseasesofflower118smit Year: 1940 Diseases of Flowers and Other Ornamentals 49 Affected leaves should be removed as soon as the disease first appears. The trees may be sprayed with 3-3-50 bordeaux mixture (p. 97), which disfigures the foliage somewhat. A sticker (p. 102) may be added to the spray if it seems necessary. Leaf Smut.—Leaves of the ornamental date palm, Phoenix canaden- sis, are often disfigured by this fungus disease, caused by Graphiola phoenicis. Small, dark, cup-shaped pustules, filled with powdery spores of the fungus appear on mature leaves, which become unsightly and dry
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